P2708 硬币翻转

R42118336

problem/P2708/P2708.cpp

@@ -0,0 +1,19 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    string s;
+    cin >> s;
+    int ans = s.size() - 1;
+    for (int i = 1; i < s.size(); i++) {
+        if (s[i] == s[i - 1]) {
+            ans--;
+        }
+    }
+    if (s[s.size() - 1] == '0') {
+        ans++;
+    }
+    cout << ans << endl;
+    return 0;
+}